Added tablechooser and SqlBuilder class

SqlBuilder.cs

@@ -0,0 +1,84 @@
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Text;
+
+namespace DbTools {
+    public class SqlBuilder {
+
+        public string[] GetTableNames(IDbConnection cn) {
+            if (cn == null) {
+                throw new ArgumentNullException("cn");
+            }
+            List<string> tables = new List<string>();
+            if (cn.State != ConnectionState.Open) {
+                cn.Open();
+            }
+            using (IDbCommand cmd = cn.CreateCommand()) {
+                cmd.CommandText = "SELECT name FROM sqlite_master WHERE type='table' AND name NOT LIKE 'sqlite_%' ORDER BY name;";
+                using (IDataReader reader = cmd.ExecuteReader()) {
+                    while (reader.Read()) {
+                        tables.Add(reader.GetString(0));
+                    }
+                }
+            }
+            return tables.ToArray();
+        }
+
+        public string GetTableCreateSql(IDbConnection cn, string tableName, string selectStatement = "select * from $table") {
+            if (cn == null) {
+                throw new ArgumentNullException("cn");
+            }
+            if (string.IsNullOrEmpty(tableName)) {
+                throw new ArgumentNullException("tableName");
+            }
+
+            if (cn.State != ConnectionState.Open) {
+                cn.Open();
+            }
+            selectStatement = selectStatement.Replace("$table", tableName);
+            using (IDbCommand cmd = cn.CreateCommand()) {
+                cmd.CommandText = selectStatement;
+                using (IDataReader reader = cmd.ExecuteReader(CommandBehavior.SchemaOnly | CommandBehavior.KeyInfo)) {
+                    DataTable schemaTable = reader.GetSchemaTable();
+                    if (schemaTable == null) {
+                        throw new Exception("Could not get schema for table " + tableName);
+                    }
+                    StringBuilder sb = new StringBuilder();
+                    sb.AppendLine("CREATE TABLE " + tableName + " (");
+                    List<string> pkColumns = new List<string>();
+                    foreach (DataRow row in schemaTable.Rows) {
+                        string columnName = row["ColumnName"].ToString();
+                        string dataType = row["DataTypeName"].ToString();
+                        int columnSize = Convert.ToInt32(row["ColumnSize"]);
+                        bool allowDBNull = Convert.ToBoolean(row["AllowDBNull"]);
+                        bool isKey = Convert.ToBoolean(row["IsKey"]);
+                        if (isKey) {
+                            pkColumns.Add(columnName);
+                        }
+                        sb.Append("    " + columnName + " " + dataType);
+                        if (dataType.Equals("VARCHAR", StringComparison.OrdinalIgnoreCase) ||
+                            dataType.Equals("CHAR", StringComparison.OrdinalIgnoreCase) ||
+                            dataType.Equals("NVARCHAR", StringComparison.OrdinalIgnoreCase) ||
+                            dataType.Equals("NCHAR", StringComparison.OrdinalIgnoreCase)) {
+                            sb.Append("(" + columnSize + ")");
+                        }
+                        if (!allowDBNull) {
+                            sb.Append(" NOT NULL");
+                        }
+                        sb.AppendLine(",");
+                    }
+                    if (pkColumns.Count > 0) {
+                        sb.AppendLine("    PRIMARY KEY (" + string.Join(", ", pkColumns) + ")");
+                    } else {
+                        // Remove the last comma
+                        sb.Length -= 3;
+                        sb.AppendLine();
+                    }
+                    sb.AppendLine(");");
+                    return sb.ToString();
+                }
+            }
+        }
+    }
+}